Is SAA Voyager flying into the abyss?

Just when things were looking better, they started getting worse. There was a brief time with efficient, friendly agents and acknowledgement of e-mails within 48 hours, but that stopped. Call center calls are answered quickly, but by rude agents who spin any story to get rid of you. My sense is the good recovery at SAA is being reversed, including the Voyager program. My story: Upgrades are possible with Star Alliance bookings using Voyager miles. This has to be done on the website - no call center assistance here. The website was down for days with no communication. When at last I was able to login and try the upgrade, there is now a "Technical error" with an SA /901 error code. If I cannot get this working, I will have wasted R8,000 buying the Economy ticket in the correct class to qualify for the upgrade. There is more losing than winning with SAA Voyager and that's not what a loyalty program is about!